User's Manual

Collision Avoidance System: CAS-CAM/RF® Operating Instructions
Document Number: CAS-CAM_RF Operating Instructions (with FCC
precautions)_18June2010.doc
Page 34 of 126
Issue: E
5 SYSTEM OPERATION
5.1 General
The Heavy Vehicle will detect any tagged object within a pre-designated Detection Zone
that can be programmed at the time of installation. The RF tags transmit an identification
code that is deciphered by the Heavy Vehicle RF unit(s) and is classified into various
object classes, i.e. Light Vehicle (LV), Personnel Tag (PT), Stationary Object (SO), other
Heavy Vehicle (HV) or Test Station (TS).
The number of RF tags detected in each object class is displayed on the video monitor for
both front and rear detections (refer to Figure 35 for the screen layout). The Heavy Vehicle
unit also conducts initial and continuous self-checks to detect equipment malfunctions,
which are reported to the driver on the Display Unit. The reversing siren circuit can be
enabled as a fail-safe backup in the event of equipment failure or when an object is
detected at the rear within the programmed detection zone.
The Heavy Vehicle is continually receiving and transmitting signals that are detected by
the Personal Tags (PT), Light Vehicle (LV), Heavy Vehicle (HV), Stationary Object (SO) or
Test Station (TS) RF tags. When in the Heavy Vehicle Detection Zone (and HV in gear),
the Light Vehicle tags flash lights and sound an audible alarm in the cab. Tagged
Stationary Objects and Test Stations flash lights for driver identification.
The driver is provided with the number of each class of obstacle within the Heavy Vehicle’s
Detection Zone, on the Display Unit. Only when the Heavy Vehicle is in gear will the
audible alarm in the Display Unit sound when any objects have been detected within the
Heavy Vehicle Detection Zone. Heavy Vehicle visual and audible alarms are fully
programmable in the Display Unit for each object class (HV, LV, SO, PT, TS), based on
range, HV detection location (front / rear / sides), direction of travel (forward / park /
reverse) and speed.
All RF tags have a unique ID code that is logged when detected by either a Heavy Vehicle,
Light Vehicle, Stationary Object, Mobile Plant & Equipment, Test Station or Personnel
units. Collision detection data can be retrieved by either a Fleet Management System or
Laptop PC for safety audit trail purposes.
The system has been designed to enable the installation of the CAS in it’s entirety (CAS-
CAM/RF
®
) or the high-resolution colour video system (CAS-CAM
®
) as a stand-alone
product, with the necessary in-built smarts to install the RF interface (CAS-RF
®
) at a later
stage, should the user so desire.